Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Ohio Valley Climate Region

Precipitation Rankings, November 2021

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
November 2021
1-Month 		1.35"
(34.29mm)		 3.13"
(79.50mm)		 -1.78"
(-45.21mm)		 10th Driest
Driest since:
 1904
119th Wettest
Wettest since:
 1985
Oct–Nov 2021
2-Month 		6.66"
(169.16mm)		 6.03"
(153.16mm)		 0.63"
(16.00mm)		 80th Driest
Driest since:
 1904
49th Wettest
Wettest since:
 1919
Sep–Nov 2021
3-Month 		10.14"
(257.56mm)		 9.50"
(241.30mm)		 0.64"
(16.26mm)		 77th Driest
Driest since:
 1953
52nd Wettest
Wettest since:
 1926
Aug–Nov 2021
4-Month 		14.55"
(369.57mm)		 13.17"
(334.52mm)		 1.38"
(35.05mm)		 88th Driest
Driest since:
 1953
41st Wettest
Wettest since:
 1926
Jul–Nov 2021
5-Month 		19.68"
(499.87mm)		 17.16"
(435.86mm)		 2.52"
(64.01mm)		 99th Driest
Driest since:
 1953
30th Wettest
Wettest since:
 1926
Jun–Nov 2021
6-Month 		24.78"
(629.41mm)		 21.42"
(544.07mm)		 3.36"
(85.34mm)		 106th Driest
Driest since:
 1953
23rd Wettest
Wettest since:
 1926
May–Nov 2021
7-Month 		28.91"
(734.31mm)		 25.68"
(652.27mm)		 3.23"
(82.04mm)		 97th Driest
Driest since:
 1953
32nd Wettest
Wettest since:
 1915
Apr–Nov 2021
8-Month 		32.20"
(817.88mm)		 29.60"
(751.84mm)		 2.60"
(66.04mm)		 85th Driest
Driest since:
 1930
44th Wettest
Wettest since:
 2011
Mar–Nov 2021
9-Month 		37.51"
(952.75mm)		 33.41"
(848.61mm)		 4.10"
(104.14mm)		 101st Driest
Driest since:
 1930
28th Wettest
Wettest since:
 2011
Feb–Nov 2021
10-Month 		40.17"
(1,020.32mm)		 36.08"
(916.43mm)		 4.09"
(103.89mm)		 101st Driest
Driest since:
 1930
28th Wettest
Wettest since:
 2011
Ties: 1951
Jan–Nov 2021
11-Month 		43.11"
(1,094.99mm)		 39.12"
(993.65mm)		 3.99"
(101.34mm)		 98th Driest
Driest since:
 1930
31st Wettest
Wettest since:
 2019
Ties: 1961
Dec 2020–Nov 2021
12-Month 		45.67"
(1,160.02mm)		 42.22"
(1,072.39mm)		 3.45"
(87.63mm)		 92nd Driest
Driest since:
 1901
36th Wettest
Wettest since:
 2019
Jun 2020–Nov 2021
18-Month 		68.22"
(1,732.79mm)		 63.66"
(1,616.96mm)		 4.56"
(115.83mm)		 97th Driest
Driest since:
 1953
31st Wettest
Wettest since:
 2019
Dec 2019–Nov 2021
24-Month 		95.97"
(2,437.64mm)		 84.44"
(2,144.78mm)		 11.53"
(292.86mm)		 117th Driest
Driest since:
 1931
10th Wettest
Wettest since:
 2019
Dec 2018–Nov 2021
36-Month 		150.72"
(3,828.29mm)		 126.67"
(3,217.42mm)		 24.05"
(610.87mm)		 123rd Driest
Driest since:
 1954
3rd Wettest
Wettest since:
 2020
Dec 2017–Nov 2021
48-Month 		201.31"
(5,113.27mm)		 168.94"
(4,291.08mm)		 32.37"
(822.19mm)		 123rd Driest
Driest since:
 1956
2nd Wettest
Wettest since:
 2020
Dec 2016–Nov 2021
60-Month 		248.11"
(6,301.99mm)		 211.17"
(5,363.72mm)		 36.94"
(938.27mm)		 123rd Driest
Driest since:
 1956
1st Wettest
Wettest to Date
 2021

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